Gas-regrttlator



ing to my improvements.

UNITED STATES PATENT OFFICE.

WM. MALLERD, OF BRIDGEPORT, CONNECTICUT.

GAS-REGULATOR.

Specification forming part of Letters Patent No. 21,765, dated October 12, 1858; Reissued March 20,

To all whom it may concern:

Be it known that I, WVILLIAM MALLERD, of Bridgeport, in the county of F airfield and State of Connecticut, have invented certain new and useful Improvements in Gas-Begulators; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making part of this specification, in which Figure 1, represents a vertical central sec tion of a gas regulator constructed accord- Fig. 2, is a sectional plan or top view of the cup and lever which serves to regulate the pressure of the gas. Fig. 3, is a side elevation of the cover detached.

This invention consists in regulating the pressure of the gas in the discharge pipes independent from the pressure in the supply pipes by means of a sliding weight on a graduated lever pressing on an inverted cup or reservoir which is raised by the gas as soon as the pressure of the same reaches the desired point and which lever is connected with a valve in such a manner that by raising the lever the valve is closed and the supply of gas stopped until the pressure in the reservoir is reduced again below the desired point, when the valve opens and admits a fresh supply, and in combination with the above the invention further consists in effecting the communication between the supply pipes and the reservoir by means of a small tube contracted toward its upper end so that all foreign condensible matter contained in the gas is deposited at the sides of said tube without being able to interfere with the working parts of the regulator, and the invention further consists in arranging a stud on the top of the lever for the purpose of ascertaining the flow of the gas from the outside without opening the gas regulator.

To enable those skilled in the art to fully understand and construct my improvements I will proceed to describe the same.

A vessel (6) of cast iron or any suitable metal is divided by a partition 7, into two compartments 18 and 14, the lower one of which communicates by a passage 15, with the supply pipe leading to the gasometer while the other one communicates by a similar passage 16,with the discharge pipes leading to the gas burners. The bottom 12 of the lower compartment is screwed on and it can easily be taken out to remove tar and other impurities. The upper compartment 1%, is open at the top and an inverted cup or reservoir 2, is placed over it which rests in a recess 22, at the outside of the vessel 6. This recess is filled with mercury or other suitable liquid, so as to prevent the escape of gas from the reservoir 2, and the outer edge of the recess is lower than the inner one so that tar or other impurities which may be deposited in this recess, flow over the outer edge without reaching high enough to enter into the compartment 13.

An arm 6*, extends from the vessel 6, carrying two ears 5, between which a lever at, is hinged and a weight 17, slides on the upper part of this lever and it may be adjusted on the same by means of a thumbscrew 18. ing to the common water gage used for measuring the pressure of gas and if the weight 17, is fastened at the mark 2, 011 the lever, for instance, it will require 2 inches of pressure to raise the reservoir. The manner in which this lever is attached is clearly represented in Fig. 2, where F, represents the reservoir, E, the lever, D, D, the ears through which two pointed screws B, B, work into recesses C, C, so that the lever E, works quite free and easy. A hook 20 is attached to the lever 4, extending down into the reservoir and a rod 9, is connected with said hook.

The communication between the two compartments 13 and 14: is eifected by a small tube 8, which is contracted at the upper edge so that impurities which may be carried up by the gas, are deposited on the outside of said tube from whence they may be abstracted by a plug 19. The lower end of the tube 8, forms a valve seat 0, O, and a valve 10, is attached to the rod 9, in such a manner, that by raising the lever 4, the valve 10, closes the tube 8, and thereby the supply of gas is stopped. The valve 10, is adjusted on the rod 9, by a screw thread out upon said rod and the lower end of this rod is guided by a socket 11, which is filled with mercury or other suitable liquid so that the impurities deposited from the gas at the bottom of the compartment 13, are prevented from getting into the socket 11, whereby the rod might be caused to stick and prevented from working freely. A pin or stud The lever is graduated accord-.

21, is screwed into the top of the lever and it extends through an opening I, in the cover G, (Fig. 3,) so that it is easy to ascertain from the outside if any gas is flowing or if the valve 10, is closed.

The cover G, is attached to the vessel 6, by means of ears H, corresponding to openings H, in the sides of the vessel 6.

The operation is as follows :The vessel 6, is placed between the supply and discharge pipes and the pressure at which the gas is to be burned, is determined by adjusting the weight 17 on the graduated lever 4:. As soon as gas is admitted and when the pressure of the gas in the reservoir 2, exceeds the desired point, the reservoir together with the lever 41:, is raised and the valve 10, is drawn up into the seat O, O, and the supply of gas is cut off. As soon as the pressure of the gas in the reservoir is reduced again below the desired point, the weight 17, presses down the reservoir and the valve 10, is opened so that a fresh supply of gas is admitted. By pressing on the stud 21, it may be ascertained if the valve 10 is closed or opened and it may thereby be determined to a certain extent how much the pressure in the gasometer exceeds the desired pressure for consuming the gas I do not claim broadly the use of the ris ing and falling of the reservoir 2, for the purpose of regulating the pressure of the gas; but, having thus described my invention WVhat I claim as new and desire to secure by Letters Patent, is,

1. Arranging the graduated lever 4, With the adjustable weight 17 in combination with the reservoir 2, and the valve 10,-in such a manner, that by raising the reservoir the valve is closed and the supply of gas stopped, so that the pressure of the gas in the reservoir can be regulated by adjusting the weight 17 or V 2. And in combination with the lever and reservoir by means-of a small tube 8, which is contracted toward its upper end so that impurities carried up by the gas are deposited outside of said tube without being able to interfere with the working parts of the gas regulator.

3. And I further claim arranging the stud reservoir I claim admitting the gas to the 21, in combination with lever 4:, rod g, and

valve 10, in such a manner that by depressing the stud 21, the supply of gas may be ascertained, without raising the cover of the regulator.

WILLIAM MALLERD. Witnesses:

J. H; PORTER,

T. C. SvoRrrIN.

[FIRsT PRINTED 1911.] 

